Table 3.
Measurements of Gyrodactylus yacatli García-Vásquez, Hansen, Christison, Bron & Shinn, 2011 compared with specimens found in the Mexican states of Chiapas, Jalisco, Oaxaca and Veracruz infecting cultured “tilapias” and native cichlids, and specimens from cultured Oreochromis niloticus from Kenya, Africa.
| Measurement | Original description n = 4* |
Chiapas n = 4 |
Chiapas (Native cichlid) n = 1 |
Jalisco n = 5 |
Oaxaca n = 16 |
Oaxaca (Vieja fenestrata) n = 3 |
Sinaloa n = 1 |
Veracruz n = 14 |
Kenya n = 5 |
|---|---|---|---|---|---|---|---|---|---|
| HTL | 47–49 (48.4) | 48.7–50.2 (49.6) | 73.2 | 68.2–75.5 (24.6) | 40.3–57.8 (44.3) | 56.9–57.8 (57.4) | 49.1 | 46.7–72.9 (51.7) |
51.9–52.1 (52.0) |
| HA | 15–18 (16.8) | 15.2–18.6 (16.4) | 22.3 | 23.3–25.7 (24.6) | 10.8–18.8 (14.4) | 18.3–18.8 (18.5) | 17.7 | 14.8–25.3 (17.2) |
15.2–17.8 (16.6) |
| HPSW | 7–8 (7.9) | 7.3–8.3 (7.7) | 12.0 | 10.2–13.2 (11.7) | 6.2–9.7 (7.6) | 9.1–9.7 (9.4) | 7.9 | 7.12–10.8 (8.4) |
8.0–9.1 (8.4) |
| HPL | 22–23 (22.7) | 22.1–23.3 (22.8) | 30.5 | 30.4–34.5 (33.1) | 18.4–27.9 (20.6) | 26.9–27.9 (27.4) | 23.1 | 22.9–33.5 (23.9) |
23.8–24.9 (24.5) |
| HDSW | 3–4 (3.6) | 3.3–3.8 (3.6) | 5.3 | 4.8–5.6 (5.3) | 2.9–4.4 (3.4) | 2.3–4.4 (4.3) | 3.7 | 3.1–5.4 (3.7) | 3.7–4.5 (4.2) |
| HSL | 31–33 (32.2) | 32.1–32.5 (32.3) | 49.9 | 45.0–49.2 (47.6) | 26–37.7 (28.5) | 36.8–37.8 (37.3) | 30.8 | 30.9–45.7 (33.8) | 31.5–33.9 (33.0) |
| HICL | 1–2 (1.6) | 0.6–1.1 (0.9) | 0.9 | 0.4–1.4 (0.8) | 0.4–1.2 (0.7) | 1.0–1.2 (1.1) | 0.9 | 0.5–1.5 (0.9) | 0.8–1.3 (1.1) |
| HAA° | 34–40 (37.9) | 32.0–41.2 (36.1) | 31.0 | 34.1–36.9 (35.6) | 26.5–37.9 (33.7) | 32.6–34.3 (33.5) | 37.6 | 31.0–38.5 (35.4) | 26.3–36.4 (32.2) |
| HPCA° | 5–7 (6.2) | 2.1–4.4 (3.1) | 3.2 | 2.3–4.0 (3.0) | 1.7–4.4 (3.3) | 3.2–3.4 (3.3) | 3.0 | 1.7–5.3 (3.2) | 2.5–4.9 (3.9) |
| IHAA° | 39–46 (43.3) | 37.8–48.5 (42.4) | 38.1 | 39.1–43.2 (41.5) | 31.1–53.3 (40.7) | 38.1–40.0 (39.0) | 44.1 | 36.1–45.1 (41.1) |
32.1–43.5 (38.1) |
| HRL | 16–18 (16.9) | 16.9–18.9 (17.9) | 24.5 | 20.0–28.2 (24.3) | 13.2–19.4 (15.3) | 18.7–19.4 (19.1) | 19.2 | 15.7–27.7 (18.2) | 16.9–20.2 (18.7) |
| VBL | 23–26 (24.7) | 34.3–35.0 (34.7) | 53.7 | 44.5–54.9 (57.8) | 28.6–41.6 (33.8) | 39.1–41.7 (40.4) | 36.2 | 21.8–35.9 (29.3) | 37.5–41.0 (39.8) |
| VBW | 20–21 (20.4) | 24.6–29.8 (27.1) | 35.8 | 37.3–44.4 (40.9) | 20.1–30.5 (24.3) | 27.2–30.5 (28.9) | 24.8 | 10.4–15.8 (11.7) | 26.3–30.8 (27.8) |
| VBPML | 11–12 (11.6) | 9.9–12.3 (11.3) | 16.9 | 13.7–18.2 (16.2) | 9.2–14.4 (10.5) | 13.6–14.4 (14.0) | 12.1 | 9.4–17.1 (11.4) |
13.1–13.7 (13.4) |
| VBML | 5–6 (5.3) | 5.1–5.8 (5.5) | 6.9 | 6.7–8.4 (7.9) | 4.1–6.9 (5.0) | 5.8–6.9 (6.4) | 5.5 | 4.6–7.7 (5.6) | 5.2–8.2 (6.1) |
| VBPL | 11–12 (11.5) | 8.5–10.7 (9.4) | 14 | 11.8–15.4 (13.7) | 7.0–11.8 (8.9) | 10.9–11.8 (11.3) | 9.7 | 8.6–73.3 (13.3) |
9.4–14.1 (11.1) |
| VBMemL | 8–9 (8.5) | 16.7–19.3 (18.0) | 29.3 | 26.6–30.0 (28.4) | 14.9–21.9 (16.8) | 19.0–21.9 (20.5) | 19.1 | 17.2–27.6 (20.2) |
18.7–22.4 (20.7) |
| DBL | 2.7 | 0.8–0.9 (0.8) | 1.3 | 0.9–2.0 (1.5) | 0.5–1.1 (0.9) | 1.1–1.2 (1.1) | 0.6 | 0.7–1.5 (1.1) | 0.8–1.3 (1.0) |
| DBW | 20.2 | 16.0–20.4 (18.1) | 28.4 | 21.7–28.6 (26.0) | 11.1–23.1 (16.6) | 22.1–23.7 (22.9) | 22.0 | 13.3–32.7 (18.1) |
17.1–21.3 (19.0) |
| DBAPTL | – | 6.2–7.3 (6.6) | 9.5 | 8.3– 9.0 (9.9) | 4.5–8.2 (5.7) | 7.3–8.2 (7.8) | 9.2 | 5.8–7.2 (6.5) | 5.9–7.2 (6.5) |
| MHTL | 22–24 (22.3) | 22.2–23.6 (23.0) | 32.5 | 27.2–28.9 (28.2) | 18.9–29.1 (21.3) | 28.3–29.1 (28.7) | 21.6 | 19.51–31.8 (24.0) | 22.3–23.9 (23.0) |
| MHSL | 17–20 (18.0) | 18.6–19.6 (18.8) | 26.6 | 6.6–6.8 (6.7) | 15.7–23.5 (17.6) | 23.3–23.5 (23.4) | 17.9 | 15.0–25.4 (19.4) | 18.3–19.9 (18.9) |
| MHSiL | 4–5 (4.5) | 4.3–4.5 (4.4) | 6.6 | 4.8–5.5 (5.2) | 2.7–5.5 (3.9) | 5.2–5.5 (5.4) | 4.4 | 4.0–6.5 (4.6) | 4.3–4.8 (4.6) |
| MHSiPW | 3–4 (3.3) | 3.1–3.6 (3.4) | 5.3 | 2.2–2.7 (2.5) | 1.4–4.2 (2.8) | 3.8–4.2 (4.0) | 3.7 | 2.8–5.2 (3.5) | 3.2–3.8 (3.5) |
| MHToeL | 1–2 (1.5) | 1.3–1.7 (1.5) | 2.4 | 4.1–4.6 (4.4) | 1.1–2.1 (1.4) | 1.8–2.1 (1.9) | 1.5 | 1.2–2.2 (1.7) | 1.4–1.7 (1.5) |
| MHSiDW | 3–4 (3.2) | 2.8–3.3 (3.1) | 4 | 5.7–6.4 (6.0) | 2.4–3.9 (2.9) | 3.8–3.9 (3.8) | 3.3 | 2.3–4.8 (3.1) | 2.9–3.6 (3.3) |
| MHA | 4–5 (4.2) | 3.8–4.3 (4.0) | 5.7 | 0.5–0.6 (0.6) | 3.1–4.9 (3.6) | 4.8–4.9 (4.8) | 4.2 | 3.6–5.9 (4.2) | 3.0–4.2 (3.9) |
| MHI/AH | 0.3–0.4 (0.4) | 0.2–0.4 (0.3) | 0.5 | 14.1–16.7 (15.2) | 0.2–0.6 (0.4) | 0.4–0.6 (0.5) | 0.3 | 0.3–0.6 (0.4) | 0.4–0.8 (0.5) |
| MHFL | – | 9.7–11.5 (10.9) | 15.3 | 14.1–15.2 (16.7) | 7.7–12.1 (9.4) | 11.6–12.1 (11.8) | 10.6 | 10.4–15.8 (11.7) | 9.1–11.0 (9.9) |
HTL hamulus total length; HA Hamulus aperture; HPSW hamulus point shaft width; HPL Hamulus point length; HDSW Hamulus distal shaft width; HSL Hamulus shaft length; HICL Hamulus inner curve length; HAA° Hamulus aperture angle; HPCA° Hamulus point curve angle; IHAA° Inner hamulus aperture angle; HRL Hamulus root length; VBL Ventral bar length; VBW Ventral bar width; VBPML Ventral bar process to mid length; VBML Ventral bar median length; VBPL Ventral bar process length; VBMemL Ventral bar membrane length, DBL Dorsal bar length; DBW Dorsal bar width; DBAPTL Dorsal bar attachment point length; MHTL Marginal hook total length; MHSL Marginal hook shaft length; MHSiL Marginal hook sickle length; MHSiPW Marginal hook sickle point width; MHToeL Marginal hook toe length; MHSiDW Marginal hook sickle distal width; MHA Marginal hook aperture; MHAA Marginal hook aperture angle; MHI/AH Marginal hook instep / arch height; MHFL marginal hook filament loop. *Measurements taken from the original description by García-Vásquez et al. 2011.